94412-37-0Relevant articles and documents
Triphenodioxazine acid dyes
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, (2008/06/13)
Triphenodioxazine dyes which, in the free acid form, have the formula: STR1 wherein A is Cl or Br; Y is cyclopentylene, cyclohexylene or (CH2)x where x is 2, 3 or 4; and Z is NRCO2 R1 or STR2 wherein R is H, optionally substituted alkyl or optionally substituted aryl; R1 is optionally substituted alkyl, optionally substituted cycloalkyl or optionally substituted aryl; and R2 is --CH=CH--,--CH=CH--CH2 --,--(CH2)--2-4 or a 1,2-radical of a 5 or 6 membered carbocyclic compound; or, when Y is cyclopentylene or cyclohexylene, Z may also be H or alkyl, alkoxy, aryl, aryloxy, cycloalkyl, cycloalkoxy or amino, all of which may be optionally substituted.